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This SR-047 0.047 inch (1.19mm) semi-rigid coaxial cable serves as a UT-047 compatible alternative, featuring seamless copper tube construction that provides 100% RF shielding with effectiveness exceeding 100 dB. The center conductor utilizes silver-plated copper-clad steel (SCCS) at 0.0113 inch (0.287mm) diameter, delivering excellent conductivity while maintaining mechanical strength for permanent forming. PTFE dielectric supports 70% velocity of propagation with capacitance of 29 pF/ft (95.2 pF/m). Operating frequency extends to 109 GHz, with insertion loss of 10.6 dB/m at 40 GHz and 9.39 dB/m at 65 GHz. MIL-C-17/151 compliant with 3000V RMS voltage rating and RoHS certified, this UT-047 compatible alternative semi-rigid cable is suitable for test fixture internal wiring, probe card interconnects, and microwave module integration where phase stability and repeatable performance are required.
Key Features
UT-047 compatible alternative – form-fit-function equivalent with identical 0.047" (1.19mm) outer diameter and 50 Ohm impedance, compatible with all standard UT-047 connector tooling
Seamless copper tube shield – Provides 100% RF shielding with >100 dB effectiveness, eliminating signal leakage in multi-port test fixtures
110 GHz frequency capability – Supports millimeter wave applications through W-band, with usable performance extending beyond 110 GHz
50 Ohm impedance with PTFE dielectric – 70% velocity of propagation with 29 pF/ft (95.1 pF/m) capacitance for consistent impedance
SCCS center conductor – 0.0113 inch (0.287mm) silver-plated copper-clad steel for low loss and reliable soldering
0.050 inch minimum bend radius – Formable for custom routing in test fixtures and compact module layouts
MIL-C-17/151 compliant – Manufactured to mil-spec for defense and aerospace applications
RoHS certified – Meets environmental compliance requirements for global markets
3000V RMS voltage rating – Suitable for high voltage device characterization and breakdown testing
Custom lengths – Cut to exact specifications for prototype through production quantities
Connector options – Bare ends for PCB solder, SMA through 26 GHz, 2.92mm through 40 GHz, SMP for blind-mate applications
10 meter minimum order – Low MOQ for test fixture development and research projects
Specifications
Construction
Item
Material
Diameter (in)
Diameter (mm)
Centre Conductor
Silver Plated Copper Clad Steel
0.0113
0.2870
Dielectric
Solid PTFE
0.037
0.940
Outer Conductor
Copper Tube
0.047 +/- 0.001
1.194 +/- 0.025
Electrical Data
Capacitance (pF/m)
95.2
Impedance (Ohms)
50 +/- 1.5
Velocity of Propagation (%)
70.0
Max. Frequency (GHz)
109
Max. Voltage @60Hz (V RMS)
3000
Mechanical Data
Min. Bend Radius (mm)
1.270
Weight (kg/100m)
0.33
Environmental Data
Temperature Range (℃)
-55~+150
RoHS
Compliant
Attenuation and Power
Frequency (GHz)
Attenuation (dB/m)
Power (Watts cW@20℃)
0.50
0.8
80.5
1.00
1.1
56.5
5.00
2.6
24.7
10.00
3.7
17.2
18.00
5.1
12.6
26.5
6.4
10.2
40.00
8.0
8.1
50.00
9.1
7.2
65.00
10.6
6.2
90.00
12.8
5.1
Applications
Semiconductor test industry – Internal wiring within high-frequency test fixtures and probe cards for wafer-level device characterization up to 110 GHz
Microwave module integration – Pre-formed semi rigid interconnects for internal signal routing in amplifier modules, frequency converters, and transceiver assemblies
VNA test fixtures – Signal paths within custom test enclosures connecting device under test to VNA interface ports
Aerospace & defense electronics – Internal wiring in radar modules, EW systems, and satellite payloads requiring MIL-C-17/151 compliance
Quantum computing research – Cryogenic test fixture interconnects for qubit characterization at millikelvin temperatures
5G mmWave infrastructure – Production test fixtures for 28GHz and 39GHz power amplifier and front-end module testing
Automotive radar – Test fixtures for 77GHz radar sensor characterization and production validation
Medical device manufacturing – Internal wiring in test fixtures for MRI-compatible electronics and implantable device qualification
Metrology and calibration – Reference standards and calibration fixtures requiring phase-stable, low-loss construction
High reliability component testing – Burn-in and environmental stress screening fixtures for microwave components
FAQ
Q: What is the maximum frequency for SR-047 0.047" semi-rigid cable?
A: The semi-rigid coaxial cable is specified for operation up to 110 GHz with usable performance across the entire millimeter wave spectrum. At 67 GHz, insertion loss is approximately 10.7 dB/m, suitable for short internal fixture paths under 100mm.
Q: What MIL specification does SR-047 meet?
A: This 0.047" semi rigid coax is manufactured to MIL-C-17/151 requirements, ensuring consistent quality and material traceability for defense and aerospace applications.
Q: Is this RF cable RoHS compliant?
A: Yes, SR-047 semi rigid RF cable is fully RoHS certified and meets environmental compliance requirements for global markets.
Q: What is the copper tube shield construction?
A: The seamless copper tube outer conductor provides 100% RF shielding with effectiveness exceeding 100 dB, eliminating signal leakage in multi-port test fixtures and sensitive applications.
Q: What is the minimum bend radius for routing within test fixtures?
A: Minimum static bend radius is 0.050 inches (1.27 mm). For consistent results in test fixture integration, use radiused forming tools matched to the desired bend radius.
Q: What connector options are available for this 0.047" semi rigid cable?
A: Standard options include bare ends for direct soldering, SMA connectors for applications below 26 GHz, 2.92mm connectors for 40 GHz test systems, and SMP connectors for blind-mate applications.
Q: What is the minimum order quantity for test fixture development?
A: Our MOQ for SR-047 semi rigid coax is 10 meters. This low MOQ supports test fixture prototyping and research projects.
Company Details
Bronze Gleitlager
,
Bronze Sleeve Bushings
and
Graphite Plugged Bushings
from Quality China Factory
Business Type:
Trading Company
Year Established:
2005
Total Annual:
12100000- 18600000
Employee Number:
11~50
Ecer Certification：
Verified Supplier
About Us—Shanghai Baiyin Cable Co., Ltd.
Since 2005, Shanghai Baiyin Cable Co., Ltd. has specialized in designing and manufacturing high-performance cables for demanding environments. Headquartered in Shanghai, we serve global industries with tailored solutions engineered for reliability, prec... About Us—Shanghai Baiyin Cable Co., Ltd.
Since 2005, Shanghai Baiyin Cable Co., Ltd. has specialized in designing and manufacturing high-performance cables for demanding environments. Headquartered in Shanghai, we serve global industries with tailored solutions engineered for reliability, prec...
